docker: upgrade `node` to 20.18.0 LTS (#3687)

* docker: upgrade node to 20.18.0 LTS

* update changelog

* update node on reusable test

.github/workflows/no-caching-tests.yaml

@@ -12,6 +12,6 @@ jobs:
     with:
       cache: false
       solana_cli_version: 2.1.0
-      node_version: 20.16.0
+      node_version: 20.18.0
       cargo_profile: release
       anchor_binary_name: anchor-binary-no-caching

.github/workflows/tests.yaml

@@ -15,6 +15,6 @@ jobs:
     with:
       cache: true
       solana_cli_version: 2.1.0
-      node_version: 20.16.0
+      node_version: 20.18.0
       cargo_profile: debug
       anchor_binary_name: anchor-binary

CHANGELOG.md

@@ -10,10 +10,14 @@ The minor version will be incremented upon a breaking change and the patch versi
 
 ## [Unreleased]
 
+- 
+
 ### Features
 
 ### Fixes
 
+- docker: Upgrade `node` to 20.18.0 LTS ([#3179](https://github.com/solana-foundation/anchor/pull/3687)).
+
 ### Breaking
 
 ## [0.31.1] - 2025-04-19

docker/build/Dockerfile

@@ -10,7 +10,7 @@ ARG DEBIAN_FRONTEND=noninteractive
 
 ARG SOLANA_CLI
 ARG ANCHOR_CLI
-ARG NODE_VERSION="v20.16.0"
+ARG NODE_VERSION="v20.18.0"
 
 ENV HOME="/root"
 ENV PATH="${HOME}/.cargo/bin:${PATH}"